Microporous Structure titanium khoom
Titanium yog dav siv nyob rau hauv tib neeg implantable khoom kho mob vim hais tias ntawm nws zoo biocompatibility, bacteriostasis, siab zog, lub teeb yuag, corrosion kuj, thiab tsis hnyav hlau nag lossis daus.
Tsis ntev los no, cov kws tshawb fawb los ntawm Tebchaws Meskas, Nyiv, thiab Kaus Lim Qab Teb tau tsim ib txoj hauv kev tshiab los npaj cov khoom siv titanium nrog peb-seem microstructures. Lawv thawj zaug tau npaj ob txheej titanium hydride mesh los ntawm kev luam ntawv, ces dov lub mesh rau hauv lub tog raj kheej thiab txo nws mus rau titanium los ntawm ib nrab lub tshuab nqus tsev sintering. Txoj kev no ua rau peb hloov pauv ntau dua hauv kev tswj cov duab thiab geometry ntawm cov khoom. Siv cov txheej txheem no, cov kws tshawb fawb tau tsim meshed titanium rolls thiab qhia lawv cov microstructure thiab txhua yam khoom. Tus cwj mem siv rau kev luam ntawv yog tsim los ntawm titanium hydride hmoov thiab copolymer. Cov kws tshawb fawb tau ntsuas qhov hnyav, txoj kab uas hla thiab qhov siab ntawm titanium coils ua ntej thiab tom qab kev kho cua sov los xam cov khoom siv porosity. Lawv kuj tau ua qhov kev ntsuam xyuas uniaxial compression ntawm cov khoom, ntsuas qhov strain thiab hardness ntawm cov khoom.
Cov txiaj ntsig kev sim qhia tau hais tias cov qauv mesh no tau txais qhov zoo heev ntawm qhov tawv, hardness thiab plasticity. Orthogonal bilayer meshes yog zoo sintered ua ke. Micropores tuaj yeem pom ntawm titanium fibers ntawm txhua txheej. Raws li qhov me me ntawm cov hmoov txo qis, nws cov khoom sintering nce, thaum lub porosity txo.
Titanium nrog cov qauv microporous muaj ob qhov zoo rau kev cog qoob loo hauv tib neeg lub cev:
1. Txo qhov rigidity ntawm cov khoom, yog li tsis muaj zog tiv thaiv kev ntxhov siab;
Qhov thib ob, nws tuaj yeem qhia cov pob txha loj hlob thiab ua kom muaj kev sib xyaw ua ke ntawm tib neeg lub cev thiab kev cog qoob loo. Titanium rau truss lug lossis microarrays sib xyaw ua ke muaj zog, tsis tshua muaj siab, thiab kev puas tsuaj zoo heev.
Raws li txoj hauv kev tam sim no ntawm kev npaj cov ntaub ntawv muaj kev txhawj xeeb, lawv feem ntau suav nrog cov txheej txheem precision casting, sintering ntawm stacked hlau arrays, los yog xaiv electron beam / laser sintering ntawm titanium hmoov.
Thaum kawg, cov kws tshawb fawb pom tau tias txoj kev npaj ntawm cov khoom siv microstructured titanium tshiab no tsis yog tsuas yog haum rau titanium hlau, tab sis kuj tseem tuaj yeem txuas ntxiv mus rau lwm cov hlau siv tau los ntawm kev siv cov qauv no, thiab tuaj yeem siv rau sinterable oxide-based. cov ntaub ntawv ceramic.